Whalesbook
Pumped Storage Projects: A Native Advantage
India's push for renewable energy stability is increasingly leaning towards hydro pumped storage projects (PSP). These projects leverage indigenous technologies and materials for their electrical and mechanical components, a stark contrast to battery energy storage systems (BESS) that heavily depend on imported parts. The Central Electricity Authority (CEA) highlights that PSPs are capable of providing gigawatt-scale storage with discharge durations of up to eight hours, offering operational flexibility and a remarkable lifecycle of around 100 years. BESS, currently being deployed for shorter durations of 2-4 hours, faces localization challenges, although the Union Budget 2026 offered customs duty exemptions for capital goods in lithium-ion cell manufacturing.
Bridging India's Energy Storage Gap
With an estimated 267 gigawatts (GW) of pumped storage potential, India is well-positioned to meet its projected energy storage requirements of 149-161 GW by 2034-35. As of December 2025, India has 7,176 MW of PSPs installed, with over 11,620 MW under construction. Detailed project reports are prepared for another 9,580 MW, and survey work is underway for a substantial 74,940 MW.
Investment Hurdles and Policy Imperatives
The development of PSPs is capital-intensive, with an estimated requirement of ₹5.8 lakh crore by 2036. These projects often involve extensive civil works and are located in remote areas, requiring substantial infrastructure development. Mobilizing such vast capital necessitates a concerted effort, with the government and multilateral financial institutions playing a crucial role in establishing dedicated funding mechanisms. Simplifying regulations and providing infrastructure and monetary support are key policy imperatives for successful project implementation, drawing lessons from the successes achieved in renewable energy capacity additions.